2018 YAMAHA EX check oil

Care and storage
77
WARNING
EWJ00792
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes, or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg, or vegetable oil. Call a physician im-
mediately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flames, cigarettes, etc., well away.
If using or charging the battery in an en-
closed space, make sure that it is well
ventilated. Always shield your eyes when
working near batteries.
Keep out of the reach of children.
To remove the battery:
(1) Disconnect the negative (–) battery lead.
(2) Disconnect the positive (+) battery lead.
(3) Disconnect the breather hose.
(4) Unhook the battery bands, and then re-
move the battery from the watercraft.Checking the battery
Make sure that the battery case is not dam-
aged.
Make sure that the battery terminals are
not corroded or damaged.
Make sure that the breather hose is not
clogged or damaged.
Checking the electrolyte level
Make sure that the electrolyte level is be-
tween the maximum and minimum level
marks.
If the electrolyte level is low, add distilled wa-
ter to raise it to the specified level. NOTICE:
Use only distilled water for replenishing
the battery, otherwise battery life could be
shortened.
[ECJ00242]
If distilled water was added, check the bat-
tery voltage.
It is recommended to have a Yamaha dealer
check the battery voltage and charge the bat-
tery. If you charge the battery yourself, be
sure to read and follow the instructions pro-
vided with the battery tester and charger you
use. NOTICE: Do not attempt to charge a
battery hastily. Battery life could be short-
ened.
[ECJ00252]1Negative (–) battery terminal: Black lead
2Battery band
3Positive (+) battery terminal: Red lead
4Breather hose
12
4
3
1Maximum level mark
2Minimum level mark
UF3Y71E0.book Page 77 Thursday, May 25, 2017 11:17 AM

Maintenance
83
EJU43101Periodic maintenance chart
The periodic maintenance chart gives general guidelines for periodic maintenance. Have a
Yamaha dealer perform the checks in the following chart. However, maintenance may need
to be performed more frequently depending on your operating conditions. If you have any
questions, consult a Yamaha dealer.
This “√” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page
10 hours50 hours
or 12
months
*1100
hours or
12
months
*1200
hours or
24
months
*1
Fuel lineCheck fuel hoses and
clamps√—
Fuel filler cap/Wa-
ter separatorCheck O-rings for cracks
and deformation√—
Fuel tankCheck installation and
straps√—
Water inlet strainerCheck for clogs and dam-
age√—
Cooling water hos-
esCheck for damage and
leakage, and check
clamps√—
Engine oilReplace√√85
Oil filterReplace√85
Spark plugsCheck√√—
BatteryCheck state of charge,
terminals, bands, and
breather hose√—
Battery leadsCheck terminals√—
Steering masterCheck operation and for
looseness√√—
Steering cableCheck exterior and con-
nections, and lubricate√—
Shift lever (EX
Sport)Check exterior and con-
nections, and lubricate√—
Shift cable and re-
verse gate (EX
Sport)Check exterior and con-
nections, and lubricate√—
Shift rod and re-
verse gate
(EX Deluxe)Check exterior and con-
nections, and lubricate√—
Air filter elementCheck for damage and
dirt√—
UF3Y71E0.book Page 83 Thursday, May 25, 2017 11:17 AM

Trouble recovery
88
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible44
Stale or contaminat-
edHave serviced by
Yamaha dealer—
Fuel tank Water or dirt present Have serviced by
Yamaha dealer—
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning light or in-
dicator blinks or
comes onFuel level
warningFuel tank empty Refill as soon as pos-
sible44
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer36
Engine over-
heat warningJet intake clogged Clean
90
Check en-
gine warningFaulty sensors Have serviced by
Yamaha dealer37 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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94
Index
A
After removing the watercraft from the
water ..................................................... 74
B
Battery care.............................................. 76
Battery checks ......................................... 54
Battery, jumping ....................................... 91
Beaching and docking the watercraft ...... 73
Bilge water check..................................... 54
Bilge water, draining ................................ 48
Bilge water, draining on land ................... 48
Bilge water, draining on water ................. 48
Boarding alone ......................................... 69
Boarding and starting off from a dock ..... 72
Boarding the watercraft ........................... 68
Boarding with passenger(s) ..................... 69
Bow eye ................................................... 39
Bow storage compartment ...................... 40
Builder’s plate ............................................ 2
C
Capsized watercraft ................................. 72
Check engine warning ............................. 37
Cleaning ................................................... 79
Cleaning the watercraft ............................ 76
Cleat ......................................................... 40
Cooling water pilot outlet ......................... 27
Cooling water pilot outlet check .............. 59
Craft Identification Number (CIN)............... 1
Cruising limitations................................... 11
E
Emergency procedures ............................ 90
Engine break-in ........................................ 50
Engine compartment check ..................... 53
Engine idling speed check ....................... 60
Engine oil ................................................. 46
Engine oil and oil filter .............................. 85
Engine oil level check............................... 54
Engine oil requirements ........................... 46
Engine overheat warning ......................... 36
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 57
Engine shut-off switch ............................. 25
Engine stop switch................................... 25
Engine unit check..................................... 54
Enjoy your watercraft responsibly............ 19Equipment ................................................ 38
F
Fire extinguisher check ............................ 58
Fire extinguisher holder............................ 43
Fire extinguisher holder checks ............... 58
Flushing the cooling water passages....... 75
Fuel .......................................................... 44
Fuel level check........................................ 53
Fuel level meter ........................................ 35
Fuel level warning..................................... 36
Fuel requirements .................................... 44
Fuel system checks ................................. 53
G
Getting to know your watercraft .............. 61
Glossary, watercraft ................................. 20
Glove compartment ................................. 41
H
Handgrip .................................................. 38
Hazard information................................... 15
Hood check .............................................. 59
Hour meter and voltmeter ........................ 34
Hull and deck check ................................ 58
I
Identification numbers ............................... 1
Information display................................... 33
J
Jet intake and impeller, cleaning.............. 90
Jet intake checks ..................................... 58
Jet thrust nozzle and reverse gate
check (EX Sport / EX Deluxe) ............... 58
Jumper cables, connecting ...................... 91
L
Labels, important ....................................... 4
Labels, other .............................................. 9
Labels, warning .......................................... 5
Launching the watercraft ......................... 62
Learning to operate your watercraft......... 61
Leaving the watercraft.............................. 63
Limitations on who may operate the
watercraft .............................................. 10
Long-term storage ................................... 79
Lubrication ............................................... 79
M
Main components, location of ................. 21
Maintenance............................................. 82
UF3Y71E0.book Page 94 Thursday, May 25, 2017 11:17 AM

Index
95
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 33
Multifunction information center check ... 59
O
Oil pressure warning ................................ 36
Operating in weeded areas ...................... 73
Operating the watercraft .......................... 63
Operating the watercraft in reverse or
neutral (EX Sport / EX Deluxe) .............. 67
Operating your watercraft ........................ 61
Operation requirements ........................... 12
P
Periodic maintenance chart ..................... 83
Post-launch checks ................................. 59
Post-operation care ................................. 75
Pre-launch checks ................................... 53
Pre-operation check points ..................... 53
Pre-operation checklist ............................ 51
Primary Identification (PRI-ID) number ...... 1
R
Raising the reverse gate (EX Deluxe) ....... 91
Reboarding grip ....................................... 39
Reboarding step
(EX Sport / EX Deluxe) .......................... 39
Recommended equipment ...................... 14
Reverse system checks (EX Sport) .......... 56
Reverse system (EX Sport) ...................... 29
RiDE lever checks (EX Deluxe) ................. 56
RiDE lever (EX Deluxe) ............................. 26
Riding position ......................................... 62
Rustproofing ............................................ 80
S
Safe boating rules .................................... 18
Safety equipment check .......................... 58
Seat .......................................................... 38
Seat storage compartment ...................... 42
Shift indicator (EX Deluxe)........................ 34
Shift system check (EX Deluxe) ............... 60
Shift system (EX Deluxe) .......................... 29
Speedometer ........................................... 33
Start switch .............................................. 25
Starting off ............................................... 71
Starting off from a trailer .......................... 71
Starting the engine on water .................... 62Steering system ....................................... 26
Steering system checks ........................... 55
Stern drain plug checks ........................... 58
Stern eyes ................................................ 40
Stopping the engine ................................. 63
Stopping the watercraft ........................... 66
Storage compartment checks.................. 58
Storage compartments ............................ 40
Submerged watercraft ............................. 92
Switch checks .......................................... 57
T
Tachometer .............................................. 34
Throttle lever ............................................ 26
Throttle lever checks ................................ 57
Tool kit ..................................................... 82
Towing the watercraft .............................. 92
Transporting on a trailer ........................... 49
Troubleshooting ....................................... 87
Troubleshooting chart .............................. 87
Turning the watercraft .............................. 65
W
Wakeboarding and water-skiing .............. 17
Water separator ....................................... 27
Water separator check ............................. 53
Watercraft characteristics ........................ 15
Watercraft control functions..................... 25
Watercraft operation functions ................ 29
UF3Y71E0.book Page 95 Thursday, May 25, 2017 11:17 AM